It's not clear how many ballots were affected or what will happen to them—all the state election's office will confirm is that an investigation is underway into alleged pro-Republican ballot tampering.

Clackamas County has recently had a complicated relationship with elections. In 2010, the county elections office, overseen by Clerk Sherry Hall, accidentally printed two races on a May ballot that were supposed to go on the November ballot. That mistake cost the county $120,000, according to the Oregonian. Then last fall, the state elections office had to step in to oversee a signature verification process because Hall’s office had erroneously accepted invalid signatures.